Improved machine for desiccating fertilizers



A. SMITH. MACHINE FOR DBSIGGATING FBR'ITYILIZI:RSt A No. 89,800. Patented May 4, 1869.

grs N naar sala' ir uw mim IMPROVED MACHINE FOR. DESICCATING- FERTILIZERS. i

The Schedule referred to in these Letters Patent and making nari: of the same.

v4To all whom it may canoe/rn l Be it known that I, AMOR SMITH, of Baltimore, in

the county of Baltimore, and State of Maryland, have invented a new and useful Improved Machine for Desiccating Fertilizers; and I do hereby declare that the following is a full, clear,and exact description f the same, reference being `had to the 'annexed drawings, making part of this specification, in whichv Figure 1 is an elevation, partly in'section;

igure 2 is a verticalsection o n thedine :a x, iig. 1; an t.

Figure 3 is a plan.

'lhe saine letters ,the several gures designate identical parte..

Myinvention is especially designed for desiccatmg materials used in the preparations'of fertilizers, such as leather that has first been steamed, as set forth inmy Letters-Patent, fof March, 1869, and for other analogous purposes; and

It consists in the construction and arrangement of I the revolving cylindrical tube, and the furnace in which the same is placed.

A is the furnace', in which the fuel is burned. The furnace may be of any ordinary or convenient construction. Y

B is an oven, into which lthe heat is carried from the furnace, passing through the length of the oven, into the uptake O.

Within the oven is placed a cylindrical metallic tube, D, whichis open at both ends, and slightly inclined, and rests upon four friction-wheels, E.

The tube has within it a-series of longitudinal metallic ribs, D?, sharp' upon their edges, so as to act upon the materials which pass through the tube as it revolves, cutting and breaking them so as to reduce, or assist in reducing them to the powdered, or granulated state in which they are required for use.

This tube may be revolved by the following-described mechanism :l

, The power' is applied to the pulley G, on the shaft of which is a pinion, H, meshinginto and giving motion to the-spur-,wheel-I, the shaft I of which extends through the end of the oven, and into the end of the tube' D. 0n the end of the shaft I is a clutch, K, which engages the arms of the spider D, within and attached to the tube. The revolution of the gearing will give a rotary motion to the tube.

The cooked leather, or other materialb to be acted.

upon, is to be introduced into the upp'er end of the tube D through thc pipe K, which extends through the wall of the oven and into the'tube.

` The material, thus delivered into the tube, will pass slowly along the enure length thereof, and, by vits revolution, be made to tall upon the sharp edges of! the ribs, or ns D2, and lthus be broken up and powdered, While it is exposed w the free action of the heat carriad bythe. draugh .A which Iwill alsa carry away the moisture taken up from the material, and discharge it, with the products of combustion, through the uptake. The material, as ,thus carried through the tube, will 'fall from the lower end upon the hearth of the oven, from which, when dried, it may ben removed 'through the door M, formed for the purpose, through the wall` of the oven.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In combination with theioven B, a revolving tube, D, open at both ends, when arranged to operate substantially in the manner and for the purpose set forth.

2. The combination and arrangement of the oven, the tube, the pipe L, gearing `Gr H I, shaft l', and clutch K, substantially as set forth,

3. The revolving tube D, open at both ends, and constructed with internal ribs, or fins; but this I claim only when `said tube is arranged within an oven, to operate substantially as set forth",

In testimony whreof, I have signed myname to this specification, in the presence of two subscribing witnesses.

AMOR SMITH.

Witnesses:

D. l?. HoLLowAY C. F.l OLAsnN. 

